Give your next necklace a collegiate personality with this sterling silver 5.6mm Greek letter bead featuring Omicron. Omicron is the fifteenth letter of the Greek alphabet and is represented by an O. Greek letters are used for sororities, fraternities and more, so this bead will allow you to completely personalize all of your jewelry designs. The bright sterling silver ensures your designs will look and feel high quality and the symbol is etched on four sides, so it is sure to be visible at all times.